Title of article
Poly (vinyl alcohol) thin film filled with CdSe–ZnS quantum dots: Fabrication, characterization and optical properties
Author/Authors
Baoting Suo، نويسنده , , Xin Su، نويسنده , , Ji Wu، نويسنده , , Daniel Chen، نويسنده , , Andrew Wang، نويسنده , , Zhanhu Guo، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2010
Pages
6
From page
237
To page
242
Abstract
A transparent poly (vinyl alcohol) (PVA) nanocomposite thin film (30–50 nm) reinforced with core/shell cadmium selenide (CdSe)/zinc sulfide (ZnS) quantum dots (QDs) was fabricated by a drop-casting method. A narrow peak at ∼556 nm observed in the UV–vis spectrum indicates the uniformly dispersed QDs in the PVA matrix. FT-IR analysis indicates the interaction between the QDs and the polymer matrix. Both PVA and PVA-QDs nanocomposite thin films show polarized light dependent absorption properties with several different absorption peaks. As compared to the only fluorescent emission peak at 574 nm of QDs, the pure PVA and PVA-DDs nanocomposites show an excitation wavelength dependent fluorescent emission property.
Keywords
Composite materials , Optical materials , Optical properties , Quantum dots
Journal title
Materials Chemistry and Physics
Serial Year
2010
Journal title
Materials Chemistry and Physics
Record number
1062111
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